If you are referring to those stats ^
- First is offensive points (Units killed by your offense when raiding/sieging/)
- Second is raiding points (How many resources you have recovered from raiding enemies)
- Third is defense (Units killed by your defense when defending allies/castle/settlement/beacon etc)
- Last is battleground points (Points gained from killing Balur's minions in battlegrounds)
It is important to note that all but raiding points are linked to your experience gained through combat as well. Although it is not in the first image you can see the pvp points I received for defending is equal to the defense ranking I get... Which in turn is the 3rd bar on stats